Door fastener



S- O. TVEDEN DOOR FASTENER Filed March 2 1936 i Z 6 Q 22'' M Patented Aug. 9, 1938 t I 2,126,428

UNITED STATES PATENT OFFlQE DOOR FASTENER Syver 0. Tveden, Chicago, Ill.

Application March 2, 1936, Serial No. 66,680

1 Claim. (01. 292-67) This invention relates to door fasteners, par- The latch element I may be slid along the bar ticularly designed for use. in cases where an outer 4 to cause the lug 2 to enter a recess 6 in the steel door supplements an inner door and is door jamb or frame member "I. latched from the inside. Such combination of The locking bolt 8 is supported in a transverse doors is in common use at the rear or alley enaperture 9 in the door jamb, has a head In for 5 trance to stores and in places where it is desirable receiving a socket wrench, and is threaded at its to have the fastener inaccessible from the outside opposite end H to fit the threaded aperture 3 in and of such construction that the ordinary tools lugv 2. The door jamb adjacent the fastener is which might be used for ripping a hasp loose from faced with a steel plate l2 secured to the door 10 the outside would not be serviceable for disengagjamb by screws I3 and carrying welded thereto a 10 ing the improved fastener. metal facing M for the recess 6.

The objects of the invention are to provide a The door 5 may be solid or of open construcdoor fastener whch is strong, durable, has free tion but the head of the latching bar faces inand simple elements and is operable from the inwardly and is inaccessible from the outside, parside by some such simple means as a socket tieularly when the inner door H is closed. The 15 wrench. doors 5 and I! swing on the hinges l5 and I6 and The improved construction is illustrated in the when the door 5 is open the latchi e ement I deaccompanying drawing wherein: pends from the bar 4.

Figure 1 shows in plan the improved door fas- When it is desired to fasten the outer door 5 tener with associate doors and door frame shown n l d p i n he element l is wun upward- 20 in section. 1y on its support 4 and then slid along the sup- Fig. 2 is an enlarged view of the fastener show- DO Cause the E 2 to enter recess and thus ing it in plan and partly in horizontal section and the threaded aperture in the lug comes into aline in place i d jamb hi h is l ho n in ment with the bolt. By screwing the bolt into the section. lug, the latching element I is retained against 25 Fig. 3 is a face view of the fastener as indicated movement along the a 4 and thus the outer door by the arrows 3-3 of Fig. 2. cannot be swung. outwardly on its hinges l5 with- The essential elements of the improved door out unscrewing the bolt H]. To open the outer fastener are a bolt which is slidable in a transdoor, the bolt must be unscrewed and the latchverse aperture in a door jamb with the head of ing element l slid by hand along the bar 4 to its 30 the bolt at the inside of the jamb and a cooperatinoperative position, as indicated by dotted lines ing latch element which depends from a bar on in Fig. 1. an outer door and is slidable on said bar, so I claim: that a lug carried on the depending element may In a lock construction for use in connection be moved into a recess in the door jamb in posi- W inner and Outer dOOrS o oc ng the outer 35 tion for receiving the threaded end of the bolt, 9 from the inner S Of the inner door, comthe lug having a threaded aperture for this purpnsmg a bar Secured to and Parallel With the pose outer door, a latch element slidableon the bar By means of a fastener so constructed, it is d rotatable thereon in difiierent P at ght possible to provide a door-securing means which angles i t lug earned. by sald latch is inaccessible from the outside, even though the t an ex ertdmg theliefrom m plane parallel o the door, said lug being apertured for recepouter door which it secures is an open grill. p

The lug-carrying element referred to is indi tlon a screw a keeper plate mounted on the door amb and having a recess for receiving the 4 e i the drawmg by the numeiral I m lug of said latch element, and a locking screw admes, Integral Weld-ed, lug 2 Whlch lug 15 justably mounted in said keeper plate to move V ded W' h a t e aperture The transversely to the sliding movement of the latchy e t l s ppo O a or ta u de ing element and to engage the lug at the aperture or bar 4 which is welded or riveted to an outer therein.

steel door 5. SYVER O. TVEDEN. 50 

